An electric heater is made by applying a potential difference of 100 V between the ends of a nichrome wire with a resistance of 20 ohms. What is the heat generation rate in J/s? A) 500 B) 650 C) 600 D) 1000
Q: A series circuit consists of a 12 V battery, and four resistances of 2 Ohm, 3 Ohm, 4 Ohm and 5 Ohm.…
A: The given values are, V=12 VR1=2 ΩR2=3 ΩR3=4 ΩR4=5 Ω
Q: When a potential difference of 12 V is applied to a given wire,it conducts 0.45 A of current. What…
A: Let the resistance of the wire be R, the potential difference applied at the ends of the wire be V,…
Q: The resistivity of a material is doubled when heated a certain amount. What happens to the…
A: The resistivity of a material doubles when heated to a certain temperature.Find:Change in resistance…
Q: 1) Read the resistance The numbers in the parentheses are the color code 1: Grey (8) 2: orange (3)…
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Q: B. Calculate the cost of running a 75 W stereo for two days if the cost per hour is 70 centavos.
A: The total cost to run a device in a certain time is C = c×t, where C = total cost c = cost per hour…
Q: A 200-m long copper wire of radius 0.15 mm is connected across a 6-V battery. Calculate the current…
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Q: The current passing through a resistor in a circuit is 0.5 A when the voltage across the same…
A: The current 1, I1=0.5 A The voltage 1, V1=10 V
Q: 1.) a. What basic equation will you use to calculate how much charge is moved over a period of 10 s…
A: Current in the circuit ( I ) = 0.2 Amperetime period ( t ) = 10 sec
Q: Which is true of the material that makes up high resistance wires? A. The wire is made using more…
A: Resistance is the hindrance or opposition offered to the current in a wire. Resistance is directly…
Q: Complete the table below by filling in the resistivity values of each material at 20°C. Material…
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Q: A solar panel is operated at its open-circuit voltage (operation voltage = open-circuit voltage = 48…
A: Given open-circuit voltage = 48 volt we have to find out the delivered power
Q: In a 1500-W hairdryer when it is plugged in to 120 V calculate the resistance of the hairdryer.
A: Given that, Power, P=1500 WattPotential difference,V=120 VoltWe know that,Power, P=V2Rcan be written…
Q: For an ohmic conductor, doubling the voltage without changing the resistance will cause the current
A: According to Ohm's law of conductor, Current I =V/R
Q: Two resistors ?1=40Ω and ?2=40Ω are connected in parallel, what is the net resistance?
A: When two resistors are in parallel, the net resistance can be calculated using, 1/Rnet= 1/R1+ 1/R2…
Q: The information for a solar PV system is given below: Number of PV modules: 4 The number of PV cells…
A: Given Number of PV modules = 4 Number of PV cells in each PV module = 39…
Q: 17. All the bulbs are identical in these circuits and every battery has the same voltage. An ammeter…
A: We know that power = V. I = V2R Where V =voltage and I= current and resistance of bulb The…
Q: Water contains O a. electrical energy O b. kinetic energy O c. kinetic energy and potential energy O…
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Q: What is the ratio of resistance , if two bulbs have ratings of 40 W , 220 V and 20 W,110 V .
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Q: light bulb rated 60 W at 240 V is operated from a 240 V source. a.) Find the current flowing through…
A: light bulb rated 60 W at 240 V is operated from a 240 V source. a.) Find the current flowing through…
Q: 0) Answer in terms of V a. Use Ohm's Law to calculate the current through the entire circuit. b.…
A: Given resistances, R1 =8 k ohm =8000 ohmR2= 6 k ohm = 6000 ohm voltage applied V = V voltcurrent in…
Q: Which one of the following is the correct statement regarding the resistance? The resistance of a…
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Q: A 30.0 ohm resistor is connected in parallel to a 15.0 ohm resistor. These are joined in a series to…
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Q: In a 1500-W hairdryer when it is plugged in to 120 V calculate the resistance of the hairdryer.
A: Given values: Power P = 1500 W Potential difference V = 120 V
Q: A 8-V battery in a simple circuit produces a current of 3.0 A through the circuit. How much power is…
A: Given data: Voltage supply is, V=8 V. Magnitude of current is, I=3.0 A.
Q: 1. An analog voltmeter is used to measure voltage of 60V across a resistor. The reading value is 58…
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Q: A 4 V battery, a 4 N resistor and a 3 N resistor are connected in series. The battery has an…
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Q: When three AAA 1.5-V batteries are connected in a flashlight, 0.34 A of current flows in the bulb.…
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Q: An engineer connects a battery to a circuit with only two resistors. A different current flows…
A: Let us assume two resistors are and the currents are voltage drop is V
Q: The resistivity of this material is 1.52 ohms. What is the resistance?
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Q: In household wiring, usually 12-gauge copper wire (diameter 12 mm) is used. A light bulb is…
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Q: A resistor of 9 ohms is carrying a current of 4 amperes. What is the voltage that would be…
A: Given data: Resistance (R) = 9 Ω Current (I) = 4 A Required: Voltage (V)
Q: circuit is constructed with a 6.00 V battery connected across a 2500.0 2 resistor. etermine the…
A: Voltage of the circuit , V = 6 V Resistance of circuit ,R = 2500 ohm We know from Ohm's Law V = I R…
Q: 10.a. To provide a useful purpose, electrical energy is most often converted to A. heat, chemical…
A: Solution: 10.a electrical energy is most often converted to B. heat, light, or mechanical energy.…
Q: 34 - The value is the resistivity at some reference temperature T and is usually taken to be…
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Q: A thermometer made of Platinum has a resistance of 50 N at 20 C, what is the measured temperature…
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Q: a) A freezer that is never turned off draws an average current of 2.1 A when it is plugged into a…
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Q: Three resistors rated at 18 kΩ, 22 kΩ, and 4.4 kΩ are connected in parallel in a circuit. What is…
A: R1 = 18 k-ohm R2 = 22 k-ohm R3 = 4.4 k-ohm
Q: Which of the following does not affect the conductivity of a material. a.) The resistivity of the…
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Q: A 4 V battery, a 4 Ω resistor and a 3 Ω resistor are connected in series. The battery has an…
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